Crimson Seedcracker (Pyrenestes sanguineus) - HBW 15, p. 322

Taxonomy:Pyrenestes sanguineus Swainson, 1837, Senegal. May form a superspecies with P. minor and P. ostrinus, and the three sometimes treated as conspecific. Occurs in several morphs, varying in body size and bill size, with no geographical pattern; smaller birds with medium-sized bill proposed as a geographical race, coccineus (described from Sierra Leone), but such individuals occur alongside larger-billed ones in several other parts of species' range, and considered no more than size variants. Treated as monotypic.